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Agasthenes t1_jb4j5jx wrote

But these aren't less vehicles on the road. Instead of driving from destination to destination taxi services need to drive to pickup points, Wich adds another trip.

They reduce parking but not the number of vehicles on the road.


Isord t1_jb4pcv3 wrote

A single ride share can move multiple people around during the day so it can definitely still reduce the number of cars on the road, just not by as much as a bus or train.


970 t1_jb4zkzn wrote

Does your Uber or taxi driver pick up others when you are using them?


Isord t1_jb55mqa wrote

No, but whereas you may have had multiple cars being brought into any one area from people going shopping etc, it's possible a single Uber may shuttle multiple people into one area over time.

Probably matters more for places where you have a lot of traffic from outside the city into the city being replaced by ubers/taxis than driving around within the city, and it's far eclipsed by the efficiency of actual public transportation of course.


cordialcatenary t1_jb55jiw wrote

Yes, if you have that setting turned on and are in a market in which Uberpool is present.


burnerman0 t1_jb5qj8c wrote

Less cars compared to everyone driving themselves, but more miles driven by cars because that one car needs to commute between dropoff of one person and the pickup of the next.


juntoalaluna t1_jb62flb wrote

In some situations, a big chunk of traffic is people looking for parking. You don’t need to reduce the number of vehicles very much to significantly reduce the amount of traffic.

I think the best example of this is SFPark, where parking prices were (are?) managed to maintain 60-80% parking occupancy. People being able to park easily reduces congestion.

It’s obviously not a perfect example, as you could argue that not knowing the cost of parking is going to also reduce the number of drivers, but the study I read suggested the real benefit was from increasing parking efficiency. Taxis also increase parking efficiency by not really needing parking.

So taxis do kind of reduce the number of vehicles on the road (but obviously not as much as a bus!)


Agasthenes t1_jb6f0n5 wrote

Maybe in city centres like NY or something.

Not for normal people.


ShadowGrebacier t1_jb4las5 wrote

It does reduce number of vehicles. A person using taxi or rideshare to get everywhere is a person not using a personal car. At the very least 1 less vehicle is on the roads as a result.


bebe_bird t1_jb4x8l3 wrote

Except now you have to add in the taxi, so it's -1 for the individual car and +1 for the taxi = net 0 / no change.


burnerman0 t1_jb5quwq wrote

Except it's not a 1:1 ratio of taxi users and taxi cars. If a taxi covers the commute for 15 people in a day, then it's +1 and -15. It is less vehicles on the road. But.... It's more miles driven because the taxi has to get from fare to fare.

ETA: taxis subsidize the cost of car ownership, they don't reduce congestion.


bebe_bird t1_jb800b8 wrote

Succinctly put! The only other item to point out is that between rides/fares, the taxi then drives to the next one while the personal car is parked. So they may actually increase congestion slightly. However, I'm hoping that's minor enough that its not taken into consideration for most of these calculations!


ShadowGrebacier t1_jb50bmv wrote

The taxi already existed though, many of them being cars driven to 500,000 miles. With the proliferation and usage of rideshare and taxi the people who would be adding 1 to the total amount of cars on the road are now not, the rideshare/taxi driver, already bought in but can contribute to as many as 100 people no longer needing a personal vehicle. It's a net loss, not a net negation. At the macro level, more cars are being taken off the road by virtue of the driver who already bought in, being able to negate a need for other people to get vehicle to begin with.


Agasthenes t1_jb52wdk wrote

Cara on the road == cars on existence.

Cars on the road are cars that are driven at that point in time. Not parked cars


ssnover95x t1_jb5diqx wrote

The reality is that many cities are seeing more cars on the road due to ride share services. Ride share doesn't work if there's not some capacity existing to offer service relatively quickly when a user opens the app, so now there are lots of cars driving around looking for their next ride.


Lesurous t1_jb5t5ji wrote

True, but there's an aspect that should be included, which is taking trucks off the roads too. Live in Texas, trucks everywhere and even drive one myself, but they're not fuel efficient in comparison to a passenger car when it comes to just transporting people.


ssnover95x t1_jb5xlnd wrote

I think the best way to solve that is to start to require additional licensing and taxes to vehicles above a certain weight. Vehicles have gotten heavier to improve the safety of their occupants, but it makes all other road users less safe.

I'm not sure that vehicle type is a particularly big driver of congestion though. Their footprint compared to an SUV is not that different and SUVs are popular for ride share.